ci: publish formal version from pyproject.toml on main push

Remove .postN CI versioning, fix runtime version_ge for legacy post releases, and use ASCII issue separators in health output.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_release_workflow.py

@@ -1,4 +1,4 @@
-"""Text-level checks that reusable-release-skill packages .env.example at package root."""
+"""Text-level checks for release-related GitHub Actions workflows."""
 
 from __future__ import annotations
 
@@ -8,14 +8,23 @@ import re
 import pytest
 
 _REPO_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
-_WORKFLOW_PATH = os.path.join(
+_SKILL_WORKFLOW_PATH = os.path.join(
     _REPO_ROOT, ".github", "workflows", "reusable-release-skill.yaml"
 )
+_PUBLISH_WORKFLOW_PATH = os.path.join(
+    _REPO_ROOT, ".github", "workflows", "publish.yml"
+)
 
 
 @pytest.fixture(scope="module")
 def workflow_text() -> str:
-    with open(_WORKFLOW_PATH, encoding="utf-8") as f:
+    with open(_SKILL_WORKFLOW_PATH, encoding="utf-8") as f:
+        return f.read()
+
+
+@pytest.fixture(scope="module")
+def publish_workflow_text() -> str:
+    with open(_PUBLISH_WORKFLOW_PATH, encoding="utf-8") as f:
         return f.read()
 
 
@@ -40,3 +49,18 @@ def test_workflow_does_not_package_dot_env(workflow_text: str) -> None:
         r"os\.path\.join\(PACKAGE,\s*['\"]\.env['\"]\)",
         workflow_text,
     )
+
+
+def test_publish_workflow_triggers_on_main_only(publish_workflow_text: str) -> None:
+    assert "branches:" in publish_workflow_text
+    assert "- main" in publish_workflow_text
+    assert "tags:" not in publish_workflow_text
+
+
+def test_publish_workflow_uses_pyproject_version_only(publish_workflow_text: str) -> None:
+    assert "ci_set_package_version" not in publish_workflow_text
+    assert "GITHUB_RUN_NUMBER" not in publish_workflow_text
+    assert "GITHUB_RUN_ID" not in publish_workflow_text
+    assert ".post" not in publish_workflow_text
+    assert "python3.12 -m build" in publish_workflow_text
+    assert "twine upload" in publish_workflow_text